NO140871C - Overfoeringsinnretning med en sender og mottager for analogsignaler - Google Patents
Overfoeringsinnretning med en sender og mottager for analogsignalerInfo
- Publication number
- NO140871C NO140871C NO406/73A NO40673A NO140871C NO 140871 C NO140871 C NO 140871C NO 406/73 A NO406/73 A NO 406/73A NO 40673 A NO40673 A NO 40673A NO 140871 C NO140871 C NO 140871C
- Authority
- NO
- Norway
- Prior art keywords
- transmitter
- receiver
- transmission device
- analog signals
- analog
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
- H04B14/048—Non linear compression or expansion
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmitters (AREA)
- Analogue/Digital Conversion (AREA)
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH141572A CH542552A (de) | 1972-02-01 | 1972-02-01 | Einrichtung mit einer Sende- und einer Empfangsstation zum Erzeugen, Umformen und Übertragen von Signalen |
Publications (2)
Publication Number | Publication Date |
---|---|
NO140871B NO140871B (no) | 1979-08-20 |
NO140871C true NO140871C (no) | 1979-11-28 |
Family
ID=4209908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO406/73A NO140871C (no) | 1972-02-01 | 1973-01-31 | Overfoeringsinnretning med en sender og mottager for analogsignaler |
Country Status (14)
Country | Link |
---|---|
US (1) | US4151469A (da) |
JP (1) | JPS48104409A (da) |
AT (1) | AT352780B (da) |
BE (1) | BE794774A (da) |
CA (1) | CA987787A (da) |
CH (1) | CH542552A (da) |
DE (1) | DE2302360A1 (da) |
DK (1) | DK142599B (da) |
FR (1) | FR2170105B1 (da) |
GB (1) | GB1386923A (da) |
IT (1) | IT973069B (da) |
NL (1) | NL7301217A (da) |
NO (1) | NO140871C (da) |
SE (1) | SE376704B (da) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5689195A (en) * | 1979-12-20 | 1981-07-20 | Sony Corp | Microphone device |
JPS6019196B2 (ja) * | 1979-12-20 | 1985-05-15 | 松下電器産業株式会社 | マイクロフォン装置 |
JPS58117741A (ja) * | 1981-12-30 | 1983-07-13 | Sony Corp | 信号処理回路 |
JPS59149431A (ja) * | 1983-02-16 | 1984-08-27 | Nec Corp | 圧縮器 |
JPS60101769A (ja) * | 1983-11-09 | 1985-06-05 | Hitachi Ltd | 信号伝送装置 |
GB2160394B (en) * | 1984-05-02 | 1988-03-16 | Pioneer Electronic Corp | Noise reduction system |
US5689692A (en) * | 1992-12-23 | 1997-11-18 | Honeywell Inc. | Method and apparatus for decoding an encoded NRZ signal |
WO1995031049A1 (en) * | 1994-05-09 | 1995-11-16 | Linkplus Corporation | Companding system (lincompex) using pre- and de-emphasis |
US6445233B1 (en) | 1999-12-30 | 2002-09-03 | The Engineering Consortium, Inc. | Multiple time constant rectifier apparatus and method |
US6405164B1 (en) | 1999-12-30 | 2002-06-11 | Engineering Consortium, Inc. | Audio compression circuit and method |
WO2003063160A1 (en) * | 2002-01-25 | 2003-07-31 | Koninklijke Philips Electronics N.V. | Method and unit for substracting quantization noise from a pcm signal |
DE102004036154B3 (de) * | 2004-07-26 | 2005-12-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur robusten Klassifizierung von Audiosignalen sowie Verfahren zu Einrichtung und Betrieb einer Audiosignal-Datenbank sowie Computer-Programm |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4071826A (en) * | 1961-04-27 | 1978-01-31 | The United States Of America As Represented By The Secretary Of The Navy | Clipped speech channel coded communication system |
NL6712082A (da) * | 1967-09-02 | 1969-03-04 | ||
DE1762775C3 (de) * | 1967-09-02 | 1979-10-18 | N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) | System zur Übertragung analoger Signale mittels Pulscodemodulation |
-
1972
- 1972-02-01 CH CH141572A patent/CH542552A/de not_active IP Right Cessation
- 1972-12-20 AT AT1091072A patent/AT352780B/de active
- 1972-12-28 IT IT33762/72A patent/IT973069B/it active
-
1973
- 1973-01-18 DE DE2302360A patent/DE2302360A1/de not_active Ceased
- 1973-01-29 NL NL7301217A patent/NL7301217A/xx not_active Application Discontinuation
- 1973-01-30 SE SE7301295A patent/SE376704B/xx unknown
- 1973-01-31 NO NO406/73A patent/NO140871C/no unknown
- 1973-01-31 GB GB490773A patent/GB1386923A/en not_active Expired
- 1973-01-31 BE BE794774A patent/BE794774A/xx unknown
- 1973-01-31 CA CA162,461A patent/CA987787A/en not_active Expired
- 1973-01-31 FR FR7303454A patent/FR2170105B1/fr not_active Expired
- 1973-01-31 DK DK51573AA patent/DK142599B/da unknown
- 1973-02-01 JP JP48012467A patent/JPS48104409A/ja active Pending
-
1977
- 1977-09-19 US US05/834,707 patent/US4151469A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DK142599B (da) | 1980-11-24 |
SE376704B (da) | 1975-06-02 |
DE2302360A1 (de) | 1973-08-09 |
JPS48104409A (da) | 1973-12-27 |
NL7301217A (da) | 1973-08-03 |
NO140871B (no) | 1979-08-20 |
IT973069B (it) | 1974-06-10 |
CH542552A (de) | 1973-09-30 |
US4151469A (en) | 1979-04-24 |
FR2170105B1 (da) | 1980-03-28 |
DK142599C (da) | 1981-07-27 |
BE794774A (fr) | 1973-05-16 |
AT352780B (de) | 1979-10-10 |
FR2170105A1 (da) | 1973-09-14 |
GB1386923A (en) | 1975-03-12 |
ATA1091072A (de) | 1979-03-15 |
CA987787A (en) | 1976-04-20 |
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